Means for operating motor-cycle exhaust-whistles.



J. H. RAPP.

MEANS FOR OPERATING MOTOR OYGLE EXHAUST WHISTLES.

APPLIOATION FILED NOV. 7, 1910. 1,003, 1 52. Patented Sept. 12, 1911.

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J. H. RAPP.

MEANS FOR OPERATING MOTOR CYCLE EXHAUST WHISTLES. APPLICATION FILED NOV.7, 1910,

Patented Sept. 12,1911.

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COLUMBIA PLANOGRAPH CD.,WASHINGTON. D. c.

UNITED STATES PATENT ()FFICE.

JOHN HOW'ARTH RAPP, OF CHICAGO, ILLINOIS.

MEANS FOR OPERATING MOTOR-CYCLE EXHAUST-WHISTLES.

T 0 all whom 'it may concern:

Be it known that T, JOHN H. Herr, a citizen of the United States, and aresident of the city of Chicago, county of Cook, and State of Illinois,have invented certain new and useful Improvements in Means for(lperating Motor-Cycle ExhaustWhistles, of which the following is aspecification.

My invention relates to motor cycles, that is to cycles which arepropelled by internal combustion engines, and more specifically towhistles employed in connection with the former which are connected withthe exhaust pipes of the engine thereof.

The object of my invention is the provision of means for manuallycontrolling such whistles whereby the latter may be operated by a cycleoperator with greatest ease and readiness.

A further object is the provision of whistle controlling means of thecharacter mentioned which will be of durable and economical constructionand efficient in operation.

Other objects will appear hereinafter.

With these objects in view my invention consists in whistle controllingmeans characterized as above mentioned and in certain details ofconstruction and arrangements of parts all as will be hereinafter morefully described and particularly pointed out in the appended claims.

My invention will be more readily under stood by reference to theaccompanying drawings forming a part of this specification, and inwhich- Figure 1 is a side elevation of a con-- ventional motor cycleprovided with an exhaust whistle to which is applied a whistlecontrolling mechanism embodying the preferred form of my invention, Fig.2 is an enlarged detail, partially in section, of the engine and crankshaft ofthe cycle bearing the exhaust whistle and the means forcontrolling same, and Fig. 3 is a transverse section taken onsubstantially line 50-10 of Fig. 2.

Referring now to the drawings 1 indicates a motor cycle which may be ofany ordinary or preferred design, 2 indicating the pedals thereof whichare geared in the ordinary manner to the rear wheel of the cycle forpropulsion of the latter. Mounted in the frame of the cycle in theordinary manner is an internal combustion engine 3, 1 indicating thecrank case thereof in Specification of Letters Patent.

Application filed November 7, 1910.

Patented sept. 12, 1911.

Serial No. 591,057.

which is mounted the power shaft 5, the latter being connected with therear wheel of the cycle by means of the chain 6. Lead ing from theengine 3 is the exhaust pipe 7 termii'iating at its rearward extremityin the muffler 8.

Arranged upon the exhaust pipe 7 are saddle straps 8 and 9, the samebeing rigidly clamped thereon by means of bolts 10 and nuts 11 threadedupon the latter. Arranged adjacent the exhaust pipe is the signalwhistle 12, the same being secured in position by means of an elbow 13which is threaded into the strap 9, the lower or rearw ard extremity ofsaid elbow intersecting the exhaust pipe 7, so that when the engine isin operation, a portion of the exhaust gases passing through the pipe 7will pass into the elbow 13 and up through the whistle 12 for operationof the latter. Slidably mounted within the cylindrical or tubular casingof said whistle is a piston 14 carried at the lower extremity of anexteriorly projecting piston rod 15. The piston 1 L sliding insaidwhistle casing forms a resonance chamber the size of which is adjustableand emits a varying sound according as the piston is moved toward oraway from the lower end of said whistle casing, the arrangement beingsuch that when said piston is at its lower terminal of movement in saidwhistle casing no sound will be produced, and so that when it is desiredto sound the whistle it is required to slide said piston upwardly.

The construction thus far described is old and well known no claim beingmade there to, the construction described in the following for operatingthe whistle piston be ing the subject matter of the present invention.

Formed at the extremities of the strap 8 are rearwardly projecting cars16 in which. is mounted a pivotal pin 17. Rockingly or pivotally mountedupon the pin 17 intermediate its extremities, is a lever 18. Therearward end of said lever 18 is angularly formed to constitute a footengagement portion 19 which is arranged in close proximity to the pathof the pedal 2 at the corresponding side of the cycle. The forwardextremity of the lever 18 is operatively connected by means of a link20, to the upper or exteriorly projecting extremity of the piston rod 15so that upward movement of said extremity of said lever, or downwardmovement of the opposite extremity of the latter will effect upwardsliding of the piston 14 in the whistle casing. Connected to the lever'18 adjacent the rearward extremity thereof is the lower extremity of atension spring 21, the upper extremity of said spring being suitablyfixed and preferably as, shown in the drawings, to a suitable portion ofthe engine 3. Said spring, as will be observed, serves as a means ofnormally holding the rearward extremity of said lever in elevatedposition and hence the pis ing so arranged that engagement thereof maybe readily made by the foot engaging the pedal 2 positioned adjacentthereto when the motor cycle is in use. At the present time whistles ofthis character are ordinarily operated by the hand, the operator, inoperating the same, being required to loosen his grip upon the handlebars and to bend over in order to engage the upper extremity of thepiston rod. With the present mechanism this will be unnecessary, sincethe operation of the whistle may be readily and easily effected by butslight movement of the foot.

The construction set forth is durable and economical, the same, becauseof its simplicity, is not susceptible to readily becoming inoperative,and is of great eflicienoy in operation.

While I have shown what I deem to be the preferable form of my whistleoperating mechanism, I do not wish to be limited thereto as there mightbe various changes made in the details of construction and thearrangements of parts described, without departing from the spirit ofthe invention, and hence I desire to avail myself of such variations andmodifications as come within the scope of the appended claims.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

1. The combination with a motor cycle and a piston controlled whistleconnected with the exhaust thereof, of means for operating said whistlepiston, said means comprising foot operable means operatively connectedwith said piston and adapted upon. depression to effect the operation ofsaid piston, the foot engagement portion of said means extending intooperative proximity with one of the pedals of said cycle, substantiallyas described.

2. The combination with a motor cycle and a piston controlled whistleconnected with the exhaust thereof, of means for operating said whistlepiston, said means comprising a rockingly mounted lever having one endextending in operative proximity with one of the foot rests of thecycle; and means connecting the other end of said lever with saidwhistle piston for operation of the latter, substantially as described.

3. The combination with a motor cycle and a piston controlled whistleconnected with a supply of gas under pressure, of means for operatingsaid whistle piston, said means comprising a pivoted lever hav ing oneend extending into operative proximity with one of the pedals of saidcycle; means operably connecting the other extremity of said lever withsaid whistle piston and resilient means for holding said whistle pistonin inoperative position, substantially as described.

4. The combination with a motor cycle and piston controlled whistlemounted in said cycle and connected with a supply of gas under pressure,of means for operating said whistle piston, said means comprising apivoted lever having one end extending into operative proximity with oneof the pedals of said cycle; a link connecting the other end of saidlever with said whistle piston so that rocking of said lever eifectslongitudinal operation of said piston; and a spring connected with saidlever for normally holding said piston in inoperative position,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN HOVVARTH RAPP.

Witnesses JOSHUA R. H. Po'r'rs, W. C. SMITH.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents. Washington, D. G.

